The names ' laptop' and ' notebook' refer to the fact that the computer can be practically placed on (or on top of) the user's lap and can be used similarly to a notebook.

Today, laptops are used in a variety of settings, such as at work (especially on business trips), in education, for playing games, web browsing, for personal multimedia, and for general home computer use. Laptops run on both an AC power supply and a rechargeable battery pack and can be folded shut for convenient storage and transportation, making them suitable for mobile use. In most cases, unlike table computers which run on mobile operating systems, laptops tend to run on desktop operating systems which have been traditionally associated with desktop computers. Most of the computer's internal hardware is fitted inside the lower lid enclosure under the keyboard, although many laptops have a built-in webcam at the top of the screen and some modern ones even feature a touch-screen display. Laptops typically have a clamshell form factor with a flat panel screen (usually 11–17 in or 280–430 mm in diagonal size) on the inside of the upper lid and an alphanumeric keyboard and pointing device (such as a trackpad and/or trackpoint) on the inside of the lower lid, although 2-in-1 PCs with a detachable keyboard are often marketed as laptops or as having a 'laptop mode'. a 2019 Microsoft Surface Pro 7 with detachable hinge (left) and a 2018 Dell with 360 degree hinge (right) a 2014 ThinkPad Helix by Lenovo with detachable screen and a 2014 Acer Chromebook 11Ī laptop computer or notebook computer, also known as a laptop or notebook for short, is a small, portable personal computer (PC). Clockwise from top left: A 2020 MacBook Air by Apple Inc.

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